Home / 1,672.40-2,306.71-1,112.59

Finding the Fourth Proportional to 1,672.40, 2,306.71 and 1,112.59

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Solution

The fourth proportional to 1,672.40, 2,306.71 and 1,112.59 is: 1,534.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.40 : 2,306.71 = 1,112.59 : x
  2. Step 2: Convert to fraction form
    1,672.40/2,306.71 = 1,112.59/x
  3. Step 3: Cross multiply
    1,672.40x = 2,306.71 × 1,112.59
  4. Step 4: Simplify right side
    1,672.40x = 2,566,422.48
  5. Step 5: Solve for x
    x = 2,566,422.48/1,672.40
  6. Step 6: Final answer
    x = 1,534.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.